On Jan 13 20:07, Thomas Waldmann wrote:
> On 01/13/2017 07:18 PM, Thomas Waldmann wrote:
> > It was a bug in our code that was triggered frequently by the small
> > cygwin pipe buffer size of only 64kiB.
> >
> > borgbackup fix/workaround see there:
> >
> > https://github.com/borgbackup/borg/pull/2032
> >
> > It (almost?) never happened on other OSes, due to their bigger buffers.
>
> Hmm, the last phrase seems not to be the real reason why it worked
> there, but rather that neither Linux nor *BSD ever do partial writes on
> blocking pipes.
>
> So, should cygwin also behave that ^^^ way on blocking pipes?
Yes. I inspected the code and the current behaviout was apparently
an accident when refactoring the pipe write code. I applied a patch
and uploaded new developer snapshots to https://cygwin.com/snapshots/
Please give them a try.
Thanks,
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Maintainer cygwin AT cygwin DOT com
Red Hat